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Map creation system and map creating method

a mapping system and creation method technology, applied in the direction of maps/plans/charts, navigation instruments, instruments, etc., to achieve the effect of accurate creation of road data

Active Publication Date: 2017-01-12
MITSUBISHI HEAVY IND MACHINERY SYST LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent invention helps in making accurate road data on map data to estimate which road a vehicle is driving on.

Problems solved by technology

However, there are some cases where the current position estimated by the on-board unit does not match the road information on the map data.

Method used

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  • Map creation system and map creating method
  • Map creation system and map creating method

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Embodiment Construction

[0038]First, a description is given of a configuration of a fee-charging map creation system 1 according to an embodiment of the invention with reference to FIG. 1.

[0039]The fee-charging map creation system 1 creates a map suitable to a road fee-charging system 2. Here, the road fee-charging system 2 is a system for charging a vehicle being travelling on a toll road for a fee using an on-board unit 3 mounted on the vehicle. Since road data L on map data M stored in the on-board unit 3 is made to have an attribute of a toll road or toll-free road, if a road being currently travelled which is estimated in the on-board unit 3 is a toll road, the vehicle is subjected to a fee-charging process.

[0040]The fee-charging map creation system 1 accurately arranges on the map the toll road requiring fee-charging and the toll-free road not requiring fee-charging to create a fee-charging map which enables the road fee-charging system 2 described above to accurately acquire whether a fee is charged...

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PUM

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Abstract

An object of the present invention is to provide a map creation system and a map creating method capable of accurately creating road data on map data used for estimating a road being travelled by a vehicle. A map creation system includes a trajectory data creation unit creating trajectory data of a vehicle travelling in a predetermined area on a first road on the basis of positional information of the vehicle, a representative point extraction unit extracting, of created plural pieces of the trajectory data, representative points located on a side of a second road different from the first road, and a road data creation unit creating data for the first road on map data on the basis of the plural representative points extracted for respective plural predetermined areas.

Description

TECHNICAL FIELD[0001]The present invention relates to a map creation system and a map creating method creating a map used for a map matching process.BACKGROUND ART[0002]There has been known a technology in which an on-board unit mounted on a vehicle acquires a current position of the vehicle to estimate a road on which the vehicle is currently travelling on the basis of road information on map data stored in advance. The on-board unit, which is, for example, a car navigation apparatus, uses a GPS, a gyro, a vehicle speed sensor and the like to acquire the current position of the vehicle. For the map data, information stored in a storage medium is used.[0003]As for the map data, viewability for a user when the map is displayed on a display device is prioritized. Accordingly, two or more roads actually overlapping each other in a height direction or two or more roads actually adjacent to each other are stored as the map data so as to have an interspace therebetween. This allows the us...

Claims

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Application Information

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IPC IPC(8): G01C21/32G01C21/34G01C21/36
CPCG01C21/32G01C21/3461G01C21/367G01C21/3844G01C21/3896G01C21/3815G01C21/3837G01C21/3819G09B29/106
Inventor IEHARA, MASATOHIURA, RYOTAMABUCHI, YOSHIHIRO
Owner MITSUBISHI HEAVY IND MACHINERY SYST LTD